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Question
Solve the following.
A tractor uses up 12 litres of diesel while ploughing 3 acres of land. How much diesel will be needed to plough 19 acres of land?
Solution
Amount of diesel used by tractor to plough 3 acres of land = 12 litres
∴ Amount of diesel used by tractor to plough 1 acre of land = `12/3 = 4` litres
⇒ Amount of diesel used by tractor to plough 19 acres of land = 4 × 19 = 76 litres
Thus, the amount of diesel needed to plough 19 acres of land is 76 litres.
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